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arXiv · 1703.02707

Frequency comb generation in SNAP bottle resonators

Sergey V. Suchkov·Mikhail Sumetsky·Andrey A. Sukhorukov
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Abstract

We develop a theory of optical frequency comb generation in ultra-compact Surface Nanoscale Axial Photonic (SNAP) bottle microresonators, employing the nonlinear interaction of whispering gallery modes which are confined along an optical fiber with nanoscale radius variation. We predict that a SNAP microresonator with a few-$μ$m radius can generate a frequency comb with an ultra-fine sub-GHz spectral spacing, which would require traditional ring resonators of $cm$ radius. We identify regimes of stable or quasi-periodic comb dynamics due to soliton excitation, and also show that special engineering of the SNAP radius profile can be used to compensate nonlinearity induced dispersion.

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Sergey V. Suchkov, Mikhail Sumetsky, Andrey A. Sukhorukov. 2017-03-08. Frequency comb generation in SNAP bottle resonators. https://doi.org/10.1364/ol.42.002149

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